Automobile-lock.



UNITED sTATEs PATENT oEEicE.

WARREN G. MONB, OF WYANDO-TTE, .AND ROBERT J. MCCLEERY, 0F DETROIT,

MICHIGAN.

AUTOMOBILE-LOCK.

Specification of Letters Patent.

Application filed January 13, 1913. Serial No. 741,730.

To H71 whom 'alf may con cern Be it known that We, WARREN .Gn MCNB and RoER'r `J. MCCLEERY, citizens of the United States of America, residing Aat lVyandotte and Detroit, respectively, in the county of Vayne and State of Michigan, have invented certain new and useful Improvements in AutomobileLocks, of which the following is a specification, reference being had therein to the vaccompanying drawings.

This invention rela-tes to a lock for automobiles and the like and to means whereby the steering gear may be held so that the vehicles cannot be moved for any distance.

The invention includes means which prevent the tampering with the parts when the mechanism is locked.

The invention consists in the matters hereinafter set forth and pointed out in the claims.

In the drawings, Figure 1 is a view. partially in elevation and partially broken awagy, of a. steering wheel and a post equipped with a lock that embodies features of the invention; Fig. 2 is a plan view, slightly enlarged, of the lock itself in open position lwith the casing partly broken away to give clear view; Fig. 3 is a view in longitudinal section of the lock; Fig. 4 is a view in section through the lock taken on or about line IV-IV of Fig. 2; Fig. 5 is a view in detail showing the engagement of the latch with a casing cover; Fig. 6 is a view in detail""showi'ng the method of attaching the lock to a steering post; and Fig. 7 is a view showing a modification in the arrangement of the lock.

Referring to the drawings, a casing adapted to house a lock mechanism, is adapted to be secured to the. stationary post of a steering wheel as by a saddle 3 and clip 4, the latter being held by screws 5 passing through slotted openings t5 in the back of the casing. A dowel 7 is used to center the casing on the saddle, while the slots permit variations iu the width of the saddle to accommodate different diameters of posts. A beveled gearS keyed or made permutation lock mechanism indicated at 13 with the usual outer dial plate 14 and inner tumblerplates 15, is mounted in the casing 1 in operative relation tov a swinging latch 16 whose detent 17 is adapted to ride on the tumblers 15 and to drop into engagement with them when they are in register, and is likewise provided with teeth 18 that en gage with escapement notches 19 in the periphery of the stop wheel 12 wlenthe detent is not interlocking with the tumbler disks.

The yend portion of the latch projects from the casing whereby it may be thrust into engagement with the wheel 12 and the lock set to hold it in position. A cover 20 is secured on the casing as by screws 21, and is provided with ears 22 that underrun corresponding projections in the casing When the cover is in position. lVhen the latch 16 is in engagement with the Wheel 12, it underlies an ear 23 on the casing cover 20 so that removal of the screws 21 does not release the cover. As shown in Fig. 7 the gear connection between the steering wheel shaft and the stop Wheel may be varied by the use of spur gears indicated at 24, the casing being mounted on the foot boa-rd or in any other operative relation to the steering wheel shaft in automobiles of the type in which the stationary outer post is omitted. One .feature of the device is its simplicity and the arrangement whereby it cannot be displaced when once locked. Another feature is the adaptability of the device to steering mechanisms of different types.`

Obviously, changes in the details of construction may be made Without departing from the spirit of our invention and we do `Patented Nov. 11, 1913.

not care to ylimit ourselves to any particular form or arrangement of parts.

W'hat we claim is 1. A lock for automobiles including a casing, a pinion in the casing, a stop wheel driven positively by the pinion, a latch in the easing, permutation lock mechanism in the casing adapted to hold the latch in engagement with the stop wheel when the mechanism is set, a gear adapted to mesh with the pinion and to be secured to turn with the rotating member of the steering gear, a cover on the casing, and means adapted to lock the cover to the casing when the latch is in engagement Withkthe stop wheel.

2. A lock for automobiles comprising a casing, means for securing the casing in position accessible from the interior of the casing only, a pinion in the casing, a stop Wheel positively driven by the pinion, a latch adapted to lock With the stop Wheel, permutation lock mechanism adapted to hold the latch in engagement with the stop Wheel when .seta gear adapted to be secured to the rotating member of a steering mecha nism in meshvwith the pinion, and a cover for the easing that is locked in position by the latch When the latter engages the stop wheel.

A lock for automobiles comprising a casing, means accessible within the casing only for securing" the latter in position, a pinion journaled in the casing, a gear adapted to be secured to the rotatable member of an automobile steering gear in mesh through WARREN G. MCNAB. ROBERT J. MCCLEERY.

, Witnesses:

ANNA M. Donn, GENEVIEVE E. MCGRANN. 

